Division of Neuropathology, Department of Pathology, University of California Los Angeles, Los Angeles, CA, USA Department of Neurology, University of California Los Angeles, Los Angeles, CA, USA Brain Research Institute, University of California Los Angeles, Los Angeles, CA, USA *Correspondence to: David C. Lauzier, MD, [email protected]. This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License (http://creativecommons.org/licenses/by-nc-sa/4.0/), which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.